TY - JOUR
T1 - Discharge and velocity variation of flows in open channels partially covered with different layered vegetation
AU - Tang, Xiaonan
AU - Guan, Yutong
AU - Rahimi, Hamidreza
AU - Singh, Prateek
AU - Zhang, Yujia
N1 - Funding Information:
The first author would acknowledge the support by XJTLU via the Research Funds (RDF-16-02-02, KSF-E-17, KSF-A-19) and by the National Natural Science Foundation of China (11772270).
Publisher Copyright:
© The Authors, published by EDP Sciences, 2021.
PY - 2021/6/9
Y1 - 2021/6/9
N2 - The role of vegetation in the natural environment has drawn great interest recently. The vegetation can change the velocity distribution due to its additional resistance on the flow, consequently affecting the nutrient and pollutant transport, and the habitats. Due to the complexity of flow and vegetation interaction, many previous researchers have studied the flow structure of channels with uniform vegetation. Few studies have been done on the flow of open channels partially covered vegetation of different heights on one side of the channel, which commonly exists in natural rivers. Through novel experiments for such a vegetated flow, this paper shows the influence of different layered vegetation on the velocity profile and discharge, which indicates that the velocity in the vegetation zone is significantly smaller than that in the free-flow zone and that the velocity profiles in the short and tall vegetation zones are very different. The flow through the free-flow zone is dominant (about 75%) despite its half width, and its discharge percentage slightly decreases as increasing flow depth.
AB - The role of vegetation in the natural environment has drawn great interest recently. The vegetation can change the velocity distribution due to its additional resistance on the flow, consequently affecting the nutrient and pollutant transport, and the habitats. Due to the complexity of flow and vegetation interaction, many previous researchers have studied the flow structure of channels with uniform vegetation. Few studies have been done on the flow of open channels partially covered vegetation of different heights on one side of the channel, which commonly exists in natural rivers. Through novel experiments for such a vegetated flow, this paper shows the influence of different layered vegetation on the velocity profile and discharge, which indicates that the velocity in the vegetation zone is significantly smaller than that in the free-flow zone and that the velocity profiles in the short and tall vegetation zones are very different. The flow through the free-flow zone is dominant (about 75%) despite its half width, and its discharge percentage slightly decreases as increasing flow depth.
UR - http://www.scopus.com/inward/record.url?scp=85108310645&partnerID=8YFLogxK
U2 - 10.1051/e3sconf/202126903001
DO - 10.1051/e3sconf/202126903001
M3 - Conference article
AN - SCOPUS:85108310645
SN - 2555-0403
VL - 269
JO - E3S Web of Conferences
JF - E3S Web of Conferences
M1 - 03001
T2 - 2021 International Conference on Environmental Engineering, Agricultural Pollution and Hydraulical Studies, EEAPHS 2021
Y2 - 29 May 2021 through 30 May 2021
ER -